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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
JDC3175W
JDC3175W
In Stock
From
$2,158.93
Westinghouse
175
600
JDC3200
JDC3200
In Stock
From
$2,079.93
Cutler Hammer
200
600
JDC3225
JDC3225
In Stock
From
$1,533.40
Westinghouse
225
600
JDC3250
JDC3250
In Stock
From
$1,838.44
Cutler Hammer
250
600
JDC3250W
JDC3250W
In Stock
From
$1,861.44
Westinghouse
250
600
JGMPS050G
JGMPS050G
In Stock
From
$1,258.24
Eaton
50
600
KA2090
KA2090
In Stock
From
$404.48
Westinghouse
90
600
KA2125
KA2125
In Stock
From
$358.00
Westinghouse
125
600
KA2200
KA2200
In Stock
From
$154.77
Westinghouse
200
600
KA2225
KA2225
In Stock
From
$363.66
Westinghouse
225
600
KA3225
KA3225
In Stock
From
$418.05
Westinghouse
225
600
KA3225F
KA3225F
In Stock
From
$427.06
Cutler Hammer
225
600
KA3225FS
KA3225FS
In Stock
From
$374.48
Westinghouse
225
600
KB2125
KB2125
In Stock
From
$585.55
Westinghouse
125
600
KB2150
KB2150
In Stock
From
$399.42
Westinghouse
150
600
KB2175
KB2175
In Stock
From
$127.11
Westinghouse
175
600
KB2200
KB2200
In Stock
From
$531.88
Westinghouse
200
600
KB3125
KB3125
In Stock
From
$109.16
Westinghouse
125
600
KB3200
KB3200
In Stock
From
$657.07
Westinghouse
200
600
KB3250
KB3250
In Stock
From
$1,331.48
Eaton
250
600
KB3250F
KB3250F
In Stock
From
$541.49
Cutler Hammer
250
600
KD2100
KD2100
In Stock
From
$1,097.02
Eaton
100
600
KD2125
KD2125
In Stock
From
$978.20
Westinghouse
125
600
KD2150
KD2150
In Stock
From
$1,019.30
Westinghouse
150
600
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.